| Manufacturer | International Harvester |
| Price | - |
| Model | 15-30 |
| Equipment Type | Standard-Tread Tractors |
| Factory | Milwaukee, Wisconsin, USA |
NEBRASKA TRACTOR TEST 24
| Description | Kerosene 2WD/June 14 - 19, 1920/Link: Nebraska Tractor Test 24 file/Drawbar performance/Gear 1 used for pull test. |
| Belt power (max) | 36.9 hp/27.5 kW |
| Max power | 25.9 hp/19.3 kW |
| Max pull | 4990 lbs/2263 kg |
INTERNATIONAL HARVESTER 15-30 POWER
| Drawbar (claimed) | 15 hp/11.2 kW |
| Belt (claimed) | 30 hp/22.4 kW |
| Drawbar (tested) | 25.9 hp/19.3 kW |
| Belt (tested) | 36.9 hp/27.5 kW |
ENGINE DETAIL
The International Harvester 15-30 tractor, powered by a 4-cylinder liquid-cooled engine with a significant displacement of 692.7 ci (11.4 L), offers excellent torque output, making it well-suited for heavy-duty agricultural tasks. Its relatively low rated RPM of 575 may limit higher-speed operations, but enhances fuel efficiency, particularly when running on kerosene. Challenges may include sourcing kerosene and ensuring proper coolant maintenance, given its large 160 qt (151.4 L) coolant capacity, necessary for effective thermal management during extended use.
| Description | International Harvester/kerosene/4-cylinder/liquid-cooled horizontal valve-in-head |
| Displacement | 692.7 ci/11.4 L |
| Bore/Stroke | 5.25x8.00 inches/133 x 203 mm |
| Rated RPM | 575 |
| Coolant capacity | 160 qts/151.4 L |
INTERNATIONAL HARVESTER 15-30 ENGINE
The International Harvester 15-30 tractor features an 11.4L 4-cylinder kerosene engine, providing efficient fuel usage with a 29-gallon tank capacity, ideal for prolonged operations in agricultural settings. However, the use of kerosene may necessitate additional considerations for cold weather performance and starting reliability. This tractor is especially advantageous for farmers seeking a robust machine for heavy-duty tasks while balancing fuel efficiency.
| Description | International Harvester 11.4L 4-cyl kerosene |
| Fuel tank | 29 gal/109.8 L |
TRANSMISSION
The International Harvester 15-30 features a simple 2-forward and 1-reverse gear configuration, allowing for straightforward operation, particularly in low-speed scenarios like plowing or planting. This limited gear range may restrict versatility in more complex terrain conditions or faster tasks, posing a challenge for efficient operation on varied landscapes. However, its simplicity can be an advantage for novice operators seeking easy maneuverability in farm settings.
| Type | gear |
| Gears | 2 forward and 1 reverse |
MECHANICAL
The International Harvester 15-30 tractor features a 4x2 2WD chassis, providing adequate traction for moderate tillage and fieldwork, but may struggle in slick or hilly terrains due to its two-wheel drive configuration. The open operator station enhances visibility and maneuverability but offers limited protection from environmental elements; an optional four-post canopy can mitigate weather exposure. The 2-speed gear transmission offers flexibility for varying field conditions, yet may require proper operator skill to manage speed effectively during diverse agricultural tasks.
| Chassis | 4x2 2WD |
| Cab | Open operator station. Four-post canopy available. |
| Transmission | 2-speed gear |
INTERNATIONAL HARVESTER 15-30 TIRES
The International Harvester 15-30 tractor, equipped with 40x7 steel front and 66x14 steel rear tires, offers robust traction for agricultural applications, especially in tillage and heavy-duty fieldwork. However, the all-steel tires can result in a harsher ride and increased soil compaction compared to rubber options. For optimal performance, consider scenarios involving uneven terrain or heavy loads, where the tractor's power and stability can be effectively utilized despite the challenges posed by its tire design.
| Ag front | 40x7 steel |
| Ag rear | 66x14 steel |
DIMENSIONS
| Length | 140.5 inches/356 cm |
| Width | 85 inches/215 cm |
| Height | 118 inches/299 cm |
| Weight | 8990 lbs/4077 kg |
DIMENSIONS & TIRES
The International Harvester 15-30 tractor, weighing 8,990 lbs (4,077 kg), has a robust design suitable for medium to large agricultural tasks. Its tire specifications, with a front size of 40x7 and rear size of 66x14, provide excellent traction and stability on various terrain types. However, the weight distribution may lead to challenges in maneuverability on softer soils, necessitating careful handling in such environments.
| Weight | 8990 lbs/4077 kg |
| Front tire | 40x7 |
| Rear tire | 66x14 |
15-30 SERIAL NUMBERS
| Location | Serial number plate on the left fender of the Titan 15-30. |
| 1917 | TV101 |
| 1918 | EC501 |
| 1919 | EC1366 |
| 1920 | EC3018 |
| 1921 | EC4086 |
| Final | EC4906 |